While adsorption technique has demonstrated significant po-tential in the laboratory, its technological application in the in-dustry remains a challenge owing to some technical issues not yet addressed. These issues include the versatility and robust-ness, ease of regeneration in a continuous process line under time constraint, requiring minimum energy and retaining its known eco-friendly characteristics. However, a good number of adsorbents like activated carbon have been deployed in large scale to treat wastewaters particularly organic constituents and decolourisation of water.(Babel, S and Kurniawan, T.A.2003).
In line with the quest to discover a cheap and readily available adsorbent, this study attempts to investigate the capability of snail shell, which till now remains unutilized, as an adsorbent for heavy metal removal from wastewater and to establish the conditions for optimum result.